Stereotype apparatus.



C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR.26.1909.

Patented Nov. 16, 1915.

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' 8 SHEETS-SHEET I.

WITNESSES INVENTOR C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLlCATlON HLED APR.26.1909.

Llfifl fi. Patented Nov. 16, 1915.

8 SHEETS-SHEET 2.

b WITNESSES: f t ifif INVENTOR 54 JW 72m VAVZZA/M MM ig C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FlLED APR.26.'1909.

INVENTOR Patented Nov. 16, 1915.

8 SHEETS-SHEET 3.

mama.

WITNESSES:

,C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR.26.1909.

Patented NOV. 16, 1915.

B $HEETS-SHEET 4.

WITNESSES:

INVENTOR C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR.26. 1909.

Patented Nov. 16, 1915.

8 SHEETS-SHEET 5.

/VZTNEWSISES': Z

C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR-25,1909. 1,16Q985. Patented Nov. 16, 1915.

8 SHEETS-SHEET 6.

WITNESSES C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR.26. 1909 1,160,985. Patented Nov. 16, 1915.

B SHEETS-SHEET 7.

C. E. HOPKINS.

STEREOTYPE APPARATUS.

APPLICATION FILED APR.26. 1909.

Patented Nov. 16, 1915.

8 SHEETSSHEET 8.

wvuwox CHARLES EDWARD HOPKINS. 0F PHILADELPHIA, PENNSYLVANIA.

STEREOTYPE APPARATUS.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed April 26, 1909. Serial No. 492.103.

T 0 all whom it may concern:

Be it known that 1, CHARLES Eowxnn HOPKINS, a citizen of the UnitedStates, and

at the present time a resident of the city of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have invented certainnew and useful Improvements in Stereotype Apparatus, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forming a part hereof.

The objectof the invention is to provide a machine for casting andfinishing curved stereotype plates in a minimum of time and with aminimum of labor. The improvements have been devised largely with theidea of providing an apparatus which may be operated at a considerablespeed by one man to cast, trim, shave and cool the stereotype plates sothat they may be quickly finished and made available at once for attachment to the ordinary newspaper web perfecting printing presses.

The apparatus shown in the accompanying drawings is an embodiment of theinvention which has been designed particularly for usein printing plantsof second class newspapers where the saving of labor is important andwhere economy of time is necessary. This apparatus, also, is adapted tobe operated in conjunction with any melting pot and pump that mayalready be installed on the premises.

Referring to this machine and to the accompanying drawings, Figure 1 isa plan view of the machine with the core shown in its horizontalposition. Fig. 2 is a view in side elevation showing the core inhorizontal position with the flexible band 37 in extreme elevatedposition, and the speed reducing gearing in section. Fig. 3 is a view incentral longitudinal section showing the core in horizontal positionwith a cast stereotype plate elevated above the same and the band 37 inlocked position engaging the plate. Fig. i is a plan view of the castingmechanisnnwith the core in a vertical position and so as to form withthe back a casting chamber. Fig. 5 is a view taken on the irregularplane indicated by the lines l-L in Fig. 3 with the flexible band 37partly raised. Fig. 6 isv a detail horizontal sectional view of one ofthe matrix clan'ips,'the section being taken through the clamp betweenspring 58 and the lower spring 56.

Fig. 7 is a transverse sectional view of the machine looking from thecasting end toward the finishing end with the casting mechanism removedand the cooling mechanism shown partly in section. Fig. 8 is a sectionaldetail view of the finishing mechanism on a plane indicated by the line22 of Fig. Fig. i) is also a detail sectional view showing a portion ofa full sized stereotype plate being trimmed and a portion 91 of theholding means. Fig. 10 is a detail view in elevation showing astereotype positioned upon the half-cylinder support or horse of thefinishing mechanism. Fig. 11 is a similar view after the horse has madea one-half revolution. Fig. 12 is a similar view after the horse hascompleted one revolution. Fig. 13 is a similar view showing the horseafter it has made a revolution and a half. Fig. 14 is a view showing thehorse in section and the trimming mechanism taken upon a plane indicatedby the line 33 in Fig. 3. Fig. 15 is also a detail View of a sectiontaken partly on the plane indicated by the line in Fig. 3 and alsoshowing the starting .level and holding means 96 and 97. Fig; 16 is adetail vertical sectional view of the matrix clamp at the right handside of the back, the section being taken through the center of thebearing shaft and member 44, looking toward the back 10. Fig. 17 is adetail plan view of one of the matrix clamps in open position. Fig. 18is a similar view showing the clamp partly closed; Fig. 19 is a similarview showing the clamp in closed position.

In the present machine, the back 10 is supported in an upright positionat the rear end of the frame 1.1 to which it is securely fixed. Directlyin front of the concave side of the back is the core 12 which issupported upon rockers 13 movable back and forth upon tracks 14 providedin the fran'ie, and for the purpose (if-rocking said core from ahorizontal position to a vertical position and back again. a handle 15is secured to the core at one side thereof and near what may be referredto as the top end of the core. The object of thus rocking the core is toform witlr the back a chamber in which a curved stereotype plate may becast from a matrix held in said chamber and which core with the plateand matrix may be with drawn fromthe back and be moved from a verticalto horizontal position.

When the core has reached its vertical position with its lower end uponthe carr age, the operator, by means of an operating lever 18 securedupon a shaft 16 which is journaled in extensions secured to the rockers,is able to advance the core and carriage by means of an eccentric 17which is secured to shaft 16 and which engages rollers 21 and 22 up tothe back to form the casting chamher. It should be observed that uponrocking the core into a vertical position the shaft 16 with eccentric 17secured thereto, is moved from the position shown in Fig. 3 to theposition shown in F ig. l where the eecentric 17 is positioned betweentwo rollers 21 and 22. One of the rollers is journaled upon a stud fixedin a cross brace 19 and the other roller upon a shaft 20 which passesthrough and is fixed to the cross brace 19, and when the lever 18 ismoved by the operator the eccentric 17 is turned between the rollers soas to advance the core and carriage (Figs. 3 and 4). In order to bringthe core into exact vertical position and to maintain it in suchposition as it is being slided up to the back, a guide stop member 23for limiting its turning, guiding its movement toward the back and forlimiting said movement is secured to the rockers 13 and upon rocking thecore from a horizontal into a vertical position is brought into contactwith the roller 21. The position of this guide is such that when itstrikes the roller 21 it will check the further rocking of the core, the

latter being then exactly vertical, and during the sliding of the coreup to the back, this guide 23 will travel upon the roller 21tliusmaintaining the core constantly vertical, and when the core hasreached the proper position to form the casting chamber, the curved end23* of the guide 23 will embrace the-roller 21 Fig. r, thereby lockingthe core in casting position limiting further movement of the core andin combination with the eccentric the guide member 23 will hold the corevertical as the core is withdrawn from the back. \Vhen the core has beenrocked back into its horizontal position the rocker will engage thecross shaft 20. and lugs at the ends of the tracks l-l will engage inrecesses in the lower end of the rockers, thus checking further movementof the core and holding it in a horizontal position. Upon the carriage26 is a semi-circular end ring 28 which has a thickness corresponding tothe thickness of the body of the stereotype to be cast. This ring hasits concave face beveled in order to form a bevel on the lower end ofthe stereotype (Fig. 3). When the core is rocked into a verticalposition, its lower end fits inside the ring 28, and it is through themedium of the ring 28 that the core pushes the carriage forward againstthe back. This ring 28 forms the lower end of the casting chamber andalso serves to clamp the lower end of the matrix against the lower endof the back.

Movable upon studs fixed along each of the straight sides of the coreare straight side bars or lifters 30. i 1, 2, 4, 5 and (3, these sidebars cooperate with the matrix clamps, hereafter to be described, toform the straight side walls or closures of the casting chamber.Cooperating with the side bars 30 are members 31 mounted upon the crossshaft 20 in such a way that they can turn on the shaft sufiiciently toengage the underside of the side bars 30 when the core is rocked aboutmidway between its two limiting positions.

The shaft 20 and members 31 occupy such a position relative the tracklr, rockers 13 and side bars 30 carried by the core that upon the turningof the core awayfrom the back to its horizontal position the members 31engage the side bars 30 about midway the movement and during the latterpart of the turning movement the side bars 30 in engagement with members31 will be caused .to move relative the core sufliciently to separatethe stereotype plate and matrix from the core and be supported above thesame by the bars and members 31, see Fig. 5. The movement of the platefrom the core is suffieient to withdraw the ribs 35 from the grooves 36cut in the convex'face of the core.

Stop pins 32. on member 31'. and 33. fixed to shaft 20, are provided tolimit the movement of the member 31. Near the top of the core andpivoted to one of the side bars 30 is a more or less flexible band ortailpiece 37. the free end of which is provided with a catch hook 38 anda handle for moving the band on to and off from the core: and the otherside bar 30 is provided with a spring actuated catch 39 which the hook38 of the band engages when the latter is positioned over the core(Figs. 1., 2. 4 and 5). The object of the band is to prevent moltenmetal from running behind the matrix. The reduced portion -10 of theband,

As shown in Figs.

as will be seen, clamps the upper raised marthe riser of the stereotype,a recess 42 is provided in the concavity of the bank in which thethickened portion of the band may rest when the core is in the castingposition. That portion of the concavity of the back 41" which supportsthe type portion of the matrix l1 has a greater diameter than theportions 42 and :2 which support the curved margins of the matrix. Thematrix, moreover. is molded with suitable corresponding raised marginson all four edges for the purpose of causing the edges of the stereotypenext to the type face .to be cast lower than the type face and bers. Themembers .43 are pivoted to upright shafts l5 arranged in bearings 45near the straight sides of the back and extend one on each side from theend ring 28 to the flexible band 37 or recess 42, see Fig. 3. Thesliding members l-l also consisting of bars extending between the endring 28 and recess 42 are attached to the straight sides of the back sothat they can he. slid away from and toward the concave side of theback. In the present case the pivoted members 43 are mounted in bearingsupon their respective shafts l5 and each is provided with a key 52 fastupon the shaft which operates in an elongated key-way 52 in each of therespective bearings. A spring coiled about the shaft and having one endbearing upon the corresponding pivot member. tends to force said memberto the closedposition and therefore to cause it to follow its key whenthe shaft is rotated toward the closed position and to press againstsaid key when the shaft is turned in the opposite direction. The slot5'2. and key 52 in each bearing limit the relative movement between theshaft 45 and the pivoted member 4-3.

Each sliding member H is provided on its rear edge near each end thereofwith a yoke 54 embracing shaft 45. which shaft is provided with two keysrespectively operating in elongated key-ways 54, one of which is formedin one arm of each yoke. A spring 56 engages each yoke and tends to pushthe slide member forward against the key toward the closed position.

The ope ation of the clamps then is as follows: A. matrix having firstbeen slightly curved is slipped down behind thejaws 46 (when in theposition shown in dotted lines in Fig. {5) of the clamps with its typeside facing inwardly, to the position in which the bottom of the matrixrests upon the carriage 26 between the end ring 28 and the back, and oneof the straight edges of the matrix is in engagement with or is ready tobe engaged by a spring 5%,) which is provided within one of the pivotedmembers 43. The other straight edge is adapted to be brought up againstthe straight interior of the opposite pivoted member 43. The operatornow, while holding the top of the matrix with one hand, moves a handle51 with the other hand to close the jaws. said handle being connected tothe top of one of the shafts 45 and both shafts being connected at thebottom by a link l8 and crank arms 49 and 50. The first movement of thehandle allows the pivoted members 43 to be moved into closed position bytheir springs 53, such movement serving, through the spring 59. toquickly position the matrix between the jaws or clamps. This samemovement of the handle allows the sliding members 44 to advancesufficiently so that their forward ends 47, which with the ends 46 ofthe pivoted members form the jaws. are proximate to but not yet closedupon the matrix edges. A further movement of the handle now permits thesprings 56 to force the sliding members ll. into tight engagement withthe matrix edges so that the jaws are now closed upon the matrix on bothsides. and a still further movement of the handle causes the keys 52 andto advance across their respective key-ways and to engage-both membersof the jaws and hold them tightly and positively in closed position. Inthis position. the handle is locked by a catch hook 57 engaging a catch58 fixed to the top of the back In open ing the clamps. the operationjust described is reversed, as will be readily understood withoutfurther description. From Fig. 6 it will be seen that before the corecan be withdrawn with the stereotype plate. the matrix clamps must moveback out of the way. and in dotted lines in that figure is shown theposition of one of the matrix clamps when the handle 51 has been movedback after the casting. \Vhen thus moved back.. the clamps. are out ofthe way. the matrix has been released. and the core and plate areremoved with the matrix adhering to the face of the plate.

The construction just described not only provides a very satisfactorymeans for moving the clamps into and out of position to allow for themoven'icnt of the core and plate, but furthermore constitutes a matrixclamp which operates just as well with a matrix of one thickness as witha matrix of anotherthickness.- In other words the spring actuated jawswill close tightly upon a thin matrix as well as upon a thick matrix andmoreover they will close tightly when no matrix at all is provided thuspreventing the molten metal from runnin in between the 111en1hers of thejaws dam the casting chamber is filled with molten metalas when castinga warmer. Another advantage of the spring actuated jaw memhers is thatthey obviate the danger of the matrix being held too tight and therebybroken through shrinkage or improper positioning. There is also theadvantage. which has already been referred to. of the automaticpositioning of the matrix between the jaws. Heretofore this has beendone manually, the operator depending upon his skill, experience andaccurate eyesight in determining the proper position for the matrixsheet. In the present case the operator simply lays the matrix in theclamps, as heretofore explained. and allows the closing of the clamps tobring the matrix automatically into its final and correct position.

In order to cause the metal to congeal quickly after the casting. boththe core and the back are preferably made hollow and are adapted to beconnected to a source of water supply. The core, for instance, isprovided with a flexible tube 60 which connects with a water supply pipe61 provided with a valve 62, the waste water being carried away througha flexible tube (33. The back is provided with a supply pipe 65 and avalve 64 and a waste pipe 66. Moreover, the back is provided with aflaring opening (37 in order to facilitate the flow of molten metal intothe casting chamber.

Referring, now to the finishing mechanism. it will be remembered thatafter the casting and the withdrawal of the core from the back. theplate is left raised slightly above the core in the position shown inFigs. 3 and 5. After the matrix has been stripped from the plate in thisposition and the plate has been released by the unfastening of the tailpiece or band 37, it is slided longitudinally bythe operator upon asupport or horse 73 which is in alinement with the core while the latteris in its horizontal position. The plate. is positioned upon the horseby having a lug ('39 cast therein which, when the plate has reached itsproper position upon the horse. abut against an adjustable stop 94. Thehorse is semi-cylindrical in shape and is rotatable about a shaft 72,the rotation of the horse being adapted to transfer the plate therefromto a stationary bed 71 directly underneath the horse and of a lengthequal to the type face of the stereotype. While in this bed, thestereotype is finished by being trimmed and shaved.

F or the purpose of transferring the stereotype from the horse to thebed. (Figs. 10

to 13), one edge of the horse is provided with movable fingers 76 whichwhen closed are flush w1th the cylindrical face of the horse but when inoperation protrude sutfi-.

ciently to engage the edge of the stereotype thereupon. In this way,when a stereotype is placed upon a horse and the horse is re volved, thefingers during the first half revolution of the horse are kept inengagement with the plate by a spring but at the end of the first halfrevolution the fingers 7 6 are withdrawn against the action of thespring by means of a cam 81. At the same time that the fingers arewithdrawn, or substantially the same time, a stop 83 along one edge ofthe bed is moved into operative position by acam 82 and thus serves tocheck the further rotation of the stereotype plate which by this time isresting upon the bed the horse, however, continuing upon its second halfrevolution. During this second half revolution of the horse and whilethe plate is resting upon the bed, the plate is shaved and trimmed by aknife H and a saw 8i respectively. The knife H, which is of av lengthequal to the finished plate, is positioned so as to engage andslide uponthe ribs of the plate, being secured to the shaft 72 of the horse, abrush 75, also secured to the same shaft, following the knife andbrushing out the interior of the stereotype after it has been shaved.The saw 84 is carried upon one end of a shaft 86 journaled in asegmental extension of the 1101"! and is driven at high speed throughsprockets 87 and 88 which are connected by a sprocket chain and thelatter of which is adouble sprocket and is mounted freely upon the shaft72 so as to be driven from a sprocket 89 fast to the driving shaft. Itwill thus be seen that the saw S is driven independently of the horsebut moves with the horse so as to cut off the riser portion of theplate. From Figs. 11 and 12 it will be seen that the plate is trimmedduring the second half revolution of the horse and that during this halfrevolution the extension 85 (Figs. 2. 3 and 10 to 14), which is about aquadrant in width, forms a support for the riser portion of thestereotype as it is being separated from the type face portion of theplate and thus prevents the severed portion from twisting or bending theplate on account of its unsupported weight. From Fig. 13 it will be seenthat upon the commencement of the fourth half revolution of the horse,the fingers 76 upon one edge of the horse will again be caused toprotrude through the action of the cam 81 and will engage one of thestraight edges of the stereotype plate, and that simultaneously the stop83 along one edge of the bed will be moved back out of the path of theplate through the cam The continued rotation of the horse therefore willnow remove the plate from the bed and at the end of the second completerevolution of the horse the plate will again rest upon the horse andthelatter will be in the position from which the shaft 72 and in thegear casing.

1,1eo,ees

it started where it will be checked through the operation of a clutchpresently to be explained. It should be noted that while the plate isresting in the bed and is being operated upon by the shaving knife andtrimming saw, the edge 91 of a flat plate 90, which serves as a holdingmeans, (Figs. 8 and 9) moves in a groove formed between two ribs 08 castin the concave side of the stereotype by grooves (Fig. in the core. suchplate being held in the groove by springs. In this way the plate ismaintained in the proper position during the finishing and is also heldfirmly down upon the bed.

The cams 81 and 82 are fixed to a gear 78 (Fig. 3) which is freelymounted upon the shaft 72 and is in mesh with a gear 80 fast to a gear79 which latter gear is in mesh with a gear T7 fast to the shaft 72.This arrangement is such that the cams 81 and 82 will revolve but onceduring two revolutions of the horse.

The shaft 72 driven from the main driving shaft of the apparatus throughthe interposition of reduction gearing whereby a reduced speed isobtained for the horse without the loss of power which accompa-' niesthe use of worm gearing which is'ordinarily provided for this purpose.This reduction gearing (Fig. 3) comprises a gear 101'operating looselyupon the shaft 72, a gear 108 coaxial therewith but fixed from rotation.as by being secured to the casing of the gearing, and a pinion 106-107divided as shown so as to mesh with both gears and be carried by a crankarm 105 secured to a short shaft 101 journaled in one end of Thisshort'shaft 101 is driven by a sprocket 103 connecting with the drivingshaft 102 ofthe machine and causes the crank arm to revolve and carrythe pinion 10(i107 around the gears 101 and 108. As one of these gears108 has a larger number of teeth than the other gear 101. eachrevolution of the crank arm 10?) will cause the gear 101 to be advancedby as many teeth as are represented by the difference between the numberof teeth hetweenthe gear 108 and the gear 101. In this way. it will beseen. that the speed of the gear 101 can he made as slow as desired.

The gear 101 is made to drive the horse T3 and its shaft 72 through theinterposition of a clutch which is shown clearest in Fig. 15. T11this'iigure the shaft 72 will be seen to be provided with anarm 100which is fast to said shaft and which has pivoted thereto a clutch pawl99 adapted to engage with one of a series of notches cut into theinterior face of the rim of the gear 101. Normally the pawl 90 is liftedby one arm of a clutch lever 98 so that the gear 101 revolves freelywithout moving the shaft 72.

When however the operator has moved a stereotype plate on to the horseand is ready to start the finishing device in operation, he

' lifts the handle 5):) of the starting lever and thereby .disengagesthe end of the pawl 09 from the arm 08 of the starting lever and permitssaid pawl to engage in one of the notches in the rim of the gear 101.This starts the horse rotating and the finishing devices in operation.The starting lever is provided with a book 06 which, while the finishingdevices are in operation, rides upon the face of a cam 07. This cam issecured to a gear which meshes with the gear 80 and is rotated once forevery two revolutions of the horse. It is also provided with a notchwhich the book 96 is adapted to engage, and when in the revolution ofthe cam 97, the hook 96 drops into the notch, it permits the startinglever to return to its first position and the arm 98 to check themovement of the pawl 99 by moving in the path thereof and thereby causea disengagement of it from the notch in the gear 101 with which itis inengagement. The hook 96 also serves as a means for locking the cam 97which has a geared connection to the horse and thereby locks or holdsthe horse in the desired position. Thus, as is obvious, the furtherrevolution of the horse will be checked and it will be seen that due tothe mechanism just described the horse will turn through two completerevolutions each time the clutch is operated by the starting lever Afterthe plate has been operated upon by the finishing means and the horsehas returned to its first position with the plate thereon, it is thenlifted by manually operated transfer means from the horse and depositedon a semi-cylimlrical support 121 constituting a part of the coolingmeans.

T his transfer means is shown best in Figs.

2 and 7. It includes two uprights 10S) and 110 at one side of the horse7?. and between these uprights there is pivoted a carrying frame 111operated by a lever 112 having depending spring lingers 111 providedwith beveled ends 115 and notches 110 near said ends. These lingers arepivoted upon a shaft 113 where they are slidablc, along the shaft-underthe action of their springs and said shaft is provided with a crank arm117 which is connected by a link 119 with an extension 118 upon theupright 11.0, the object of which is to keep the arms 11% alwaysvertical as the frame swings from one side of the uprights to the other.The horse is provided with recesses 120 into which the beveled ends ofthe arms 11% can enter so that after the stereotype has been finished.the operator. by turning the operating lever 112 may force the bevels ofthe arms 11-1' down over the bevel of the finished stereotype and intothe recesses 120 of the horse as shown in dotted lines in Fig. 7. Thiscauses the arms to separate against the action of their springs and afurther move ment pushes the arms down far enough to cause the notches116 to engage upon the- 111 is raised through the action of itscounterbalance spring 126 attached to one end of an arm 127. A valve ofthe cooling mechanism is depressed by the plate, upon the latter beingdeposited upon the support 121, and permits water to flow from thesupply pipe 123 into a distributingchamber at theapex of the cylinderhaving an elongated opening 121, from which chamber it flows up througha groove against the stereotype plate, flushing and cooling the same,the water thereafter being carried away by a pipe 125 which leads fromatrough for cooling the water located underneath the support 121.

. Although I have illustrated and described a preferred embodiment ofthe invention, I am aware of the fact that many modifications can bemade therein by any person skilled in the art without departing fromthe-scope of the invention as expressed in the claims. 'lherefore. I donot wish to be limited to all the details of construction herein shownand described, but

I claim as my invention:

1. In a stereotypeapparatus, the combination with a fixed upright back,of a core movable to and from the back, means to bring the core into asubstantially horizontal position with its casting face upward when itis withdrawn from theback, said core having means to withdraw the plateso that it may be presented in a horizontal position above the core whenthe latterhas been moved into its horizontal position after the casting.

2. In a stereotype apparatus, the combination of'a fixed upright back, acore movable to and from the back, and a carriage forming the bottom ofthe casting chamber and upon which the core is moved into position toform the casting chamber.

3. In a stereotype apparatus, the combination with a. fixed uprightback. of a core movable up to the back from a substantially horizontalposition, rockers upon which the core is brought into a verticalposition as it is thus moved, and a carriage upon which it is thenadvanced to form the casting chamher.

4. In a stereotype apparatus, the combination with a fixed upright back,of a core movable up to the back from a substantially horizontalposition, rockers upon which the core is brought into a verticalposition as it is thus moved. and a carriage having a ring forming thelower end of the casting chamber.

In a stereotype apparatus, the combination of a fixed upright back, acore movable to and from the back, a carriage having a semi-circularring to form the lower end of the casting chamber, rockers to deliverthe core to and from the carriage, a spring to keep the carriagenormally in such a position that when the core is delivered thereto uponthe rockers the lower end of the core will abut against the ring, andmeans to slide the core thus abutting against the ring into a positionadjacent to the back to form the. casting chamber.

6. In a stereotype apparatus, the combination of a fixed upright back, acore movable to and from the back, a carriage, rockers to deliver thecore to and from the carriage, means to move the core while on thecarriage into a position. adjacent to the back to form the castingchamber, and means to keep the core in a vertical position while somoved.

7. In a stereotype apparatus, the combination with a fixed upright back,and a core adaptedto be rocked from a horizontal position into avertical position and then slidden up to the back, and vice versa, of aneccentric for so sliding the core, and a guide having a hooked end forkeeping the core vertical 'while it is being slidden and for looking itin position when the casting chamber has been formed.

8. In a stereotype apparatus, the combination with a fixed upright back,and a core adapted to be rocked from a horizontal position into avertical position and then slidden up to the back, and vice versa, of aneccentric mo *able with the core, two fixed rollers between which theeccentric is brought when the core is in a vertical position, and aguide having a hooked end adapted to embrace one of the rollers when thecore has been moved into the casting position.

9. In a stereotype apparatus, the combination with a fixed upright back,of a core. adapted to move from a substantially horizontal position upto the back and vice versa, and lifting means to raise the plate abovethe core during the last part of the movement of the latter while it isbeing moved back to its horizontal position after the casting.

10. In a stereotype apparatus, the combination with the back, of a coreadapted to move from a substantially horizontal position up to the backand vice versa, said core having means to withdraw the cast plate, andlifting means for the plate on each side of the core, said lifting meansconstituting part of the closure for the casting chamber.

11. In a stereotype apparatus, the combination with the back, of a coreadapted to move from a substantially horizontal position up to the backand vice versa. lifting strips slidable upon each side of the core, andmeans on each side of the frame of the apparatus to raise said stripsautomatically as the core reaches its horizontal position after casting.

12. In a stereotype apparatus, the combination with a fixed uprightback, of a core, rockers for the core, and a track for the rockers,whereby the core may be rocked from a horizontal to a vertical positionand vice versa, and means to slide the core while in a vertical positiontoward and from the back. i

13. In a stereotype apparatus, the combination with a fixed uprightback, of a core, rockers for the core, and a track for the rockers,whereby the core may be rocked from a horizontal to a vertical positionand vice versa, and means to guide the core while it is advanced and tolock it when it has reached the casting position.

14. In a stereotype apparatus, the combination with the back. of acarriage, a core adapted to move up to and away from the back upon thecarriage, and a ring upon the carriage adapted to form the lower end ofthe casting chamber and to overlap the lower end of the matrix.

15. Ina stereotype apparatus, the combination with a fixed upright backand a movable core, of a carriage movable to and from the back, a ringfast to the carriage and adapted to hold the lower end of the matrix tothe back, and a band pivoted to one side of the core and adapted to holdthe top of the matrix against the back.

16. In a stereotype apparatus, the combination of a fixed upright back,a core movable to and from the back, a ring movable to and from the backand adapted to abut against the lower end of the back when the castingchamber is formed, and a spring operatively connected with the ring sothat when the core is moved away from the back, the ring will follow itfor a short distance.

17. In a stereotype appa 'atus, the combination with a fixed uprightback. a core movable to and from the back, side strips adapted to moveinwardly to close the casting chamber and overlap the matrix at thesides and then to move outwardly to release the matrix and permit thecore, plate and matrix to be withdrawn.

18. In a stereotype casting apparatus, the combination with a back, ofmatrix holding means on each side of the back adapted to adjust'thematrix in position against the back as said means moves into holdingposition. and resilient means for moving said matrix holding means intoclosed position.

19. In a stereotype apparatus, the combination with the back, of matrixholding means consisting of pivoted side members forming part of theclosure of the casting chamber and adapted to adjust the matrix inposition against the back as said means move into position, andresilient means for closing them.

20. In a stereotype apparatus, the combination with the back, of jaws oneach side to hold the matrix, each of said jaws having a transverselypivoted member and a longitudinally sliding member.

21. In a stereotype apparatus, the combination with the back. of jaws oneach side to hold the matrix. one of the jaws having a spring operatedmember to engage the longitudinal edge of the matrix and automaticallyposition it.

2'2. In a stereotype apparatus, the combination with the back. of jawson each side thereof each consisting of a pivoted member and a slidingmember. a shaft to operate said members. and keys and springscooperating with the shaft to move said members. I I

In a stereotype apparatus, the combination with the back and core, ofjaws for holding the matrix each of which has a pivoted .member and asliding member, and a single means to move the pivoted members toposition the matrix, and to move the sliding members to clamp the matrixin position.

:24. In a stereotype apparatus, the combination with the back and core,of jaws for holding the matrix each of which has a pivoted member and asliding member. means to move the pivoted members to position thematrix, means to move the sliding members to clamp the matrix. andyielding means to hold the jaws in the clamping position.

25. In a stereoty 'ie apparatus, the combination with a fixed uprightback and a core movable to and from said back and having side strips. ofmatrix holding strips movable on the sides of the back and adapted toform with the side strips on the core the side closures for the castingchamber.

26. In a stereotype apparatus. the combination with the back and core,of a tail piece pivoted to the core and adapted to fit the back. andmeans to fasten the tail piece in position over the core.

27. In a stereotype apparatus, the combination with a fixed upright backand a core movable to and from the back, of matrix holders, and means tomove the matrix holders into and out of ope 'ative positionindependently of the core.

:28. In a stereotype casting apparatus, the combination with a fixedback, of a movable core, a carriage movable toward and from the back,means carried by the core for holding the upper end of the matrixagainst the back. and .means on the carriage for holding the lower endof the matrix against the back and closing the bottom of the castingchamber.

:29. In a stereotype casting apparatus, the combination with a back, ofa core movable toward and from the back, a carriage movable toward andfrom the back, means carried by the core for holding theupper end of thematrix against the back, means on the carriage for holding the lower endof the matrix against the back. and means on the back for clamping thesides of the matrix.

30. In a stereotype casting apparatus, the combination with a hack, of acore movable toward and from the back, a carriage movable towa'rd andfrom the back. means carried by the core for holding the upper end ofthe matrix against the back, means on the carriage for holding the lowerend of the matrix against the back and closing the bottom of the castingchamber, means on the back for clamping the sides of the matrix,

and means carried by the core for raising the cast plate from the core,said matrix side clamping means and said plate lifting meansconstituting the side walls of the casting chamber.

31. In a stereotype casting apparatus, the combination with a fixedupright back, of a core movable up to the back to form a casting chamberand away from the backto deliver the cast plate. and means adapted toposition and hold the matrix in the back be fore the core is moved tocasting position and to release the matrix while the parts are incasting position.

32. In a stereotype casting apparatus, the combination with a fixedupright back, of a core adapted to deliver a cast plate in a horizontalposition, means for rocking the core to a vertical position and movingit up to the back to form a casting chamber, matrix holding means oneach side of the back adapted to adjust the matrix in position againstthe back as said means are moved into holding position. means for movingsaid matrix holding means into holding position before the core is movedup to the back and for moving said matrix holding means to releasingposition before the core is moved away from the back to deliver the castplate.

33. In. a stereotype plate casting apparatus, the combination of twoseparable members together constituting. when in contact, the lateralwalls of a casting box. with a bottom member adapted to close the bot-34. In 'a stereotype plate casting appara- I tus, the combination of apair of separable members constituting the side walls of a casting box,with a bottom ring for receiving one of said separable members movableindependently of both members laterally toward one of them.

35. In a stereotype plate casting apparatus. the combination with a backand core constituting the mold walls of an upright casting box, saidcore being movable from the back, with a movablebottom ring for closingthe bottom of the mold and holding the bottom of the matrix, and a tailsheet at the'top of the mold for holding the top of the matrix, saidtail sheet being removable from the back with the core.

36. In a stereotype plate casting apparatus, the combination of a fixedback, a movable core adapted -to move. toward and from the fixed back.and an adjustable tail sheet carried by the movable core, and adapted torest against the wall of the fixed back during casting, and having meansfor engaging the edge of the matrix to hold it in position.

37. In a stereotype plate casting. apparatus, the combination of a fixedback, a movable core adapted to move toward and from the fixed back. atail sheet carried by the movable core and adapted to, rest against thewall of the fixed back during casting, and having'means for engaging theedge of the matrix to hold it in position. said tail sheet beingpivotally connected with the movable core and being adapted to swing onits pivot away from the core'after being re moved from the-back.

38. In a stereotype plate casting apparatus. the combii'iation of afixed upright back, a core movable into the back and also movable into aposition transverse thereto, a tail sheet pivoted on the core at theside there'- of on an axis longitudinal of the core, a latch movablewith the tail sheet, and means for holding said latch when the tailsheet is in open position.

39. In a stereotype plate casting apparatus, the combination with aback, of a convex core. means for movingthe core from the back with thecast plate thereon to a position in which thestraight edges of thecore-are at the bottom. and means connected with the core moving meansfor lifting said straight edges to tree the plate from the core.

40. In a stereotype plate casting apparatus, the combination with'aback, of a core movable toward and from the same, plate lifters on thecore. means for operating the plate litters, and matrix jaws, one oneach side of the back, said matrix jaws and lifters parts are in castingposition.

41. In a stereotype plate casting apparatus, the combination with afinishing device having steps, of a core adapted to support the castplate in position to be delivered to the finishing device and havingmeans for forming projections on the concave surface of the riser ofeach plate in position to reg- 10 ister with said stops.

This specification signed and witnessed this 22nd day of April A. 1).,1909.

CHARLES EDWARD HOPKINS.

Signed in the presence of- CARL EARL BERNDT, FRANK KENNINGER.

